Severity of hyperacusis predicts individual differences in speech perception in Williams Syndrome
Elsabbagh, Mayada and Cohen, H. and Cohen, M. and Rosen, S. and Karmiloff-Smith, Annette (2011) Severity of hyperacusis predicts individual differences in speech perception in Williams Syndrome. Journal of Intellectual Disability Research 55 (6), pp. 563-571. ISSN 0964-2633.
Backgroundâ€ƒ Williams Syndrome (WS) is a neurodevelopmental disorder of genetic origin, characterised by relative proficiency in language in the face of serious impairment in several other domains. Individuals with WS display an unusual sensitivity to noise, known as hyperacusis. Methodsâ€ƒ In this study, we examined the extent to which hyperacusis interferes with the perception of speech in children and adults with WS. Participants were required to discriminate words which differed in one consonant of a cluster when these contrasts were embedded in a background of noise. Resultsâ€ƒ Although the introduction of noise interfered with performance on a consonant cluster discrimination task equally in the WS and control groups, the severity of hyperacusis significantly predicted individual variability in speech perception within the WS group. Conclusionsâ€ƒ These results suggest that alterations in sensitivity to input mediate atypical pathways for language development in WS, where hyperacusis exerts an important influence together with other non-auditory factors.
|School:||Birkbeck Schools and Departments > School of Science > Psychological Sciences|
|Research Centre:||Brain and Cognitive Development, Centre for (CBCD)|
|Date Deposited:||23 May 2011 09:54|
|Last Modified:||02 Dec 2016 11:50|
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